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Related Concept Videos

Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

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Epilepsy is a chronic neurological disease marked by recurrent, unpredictable seizures. These seizures are caused by abnormal electrical discharges in the brain, leading to behavior, sensation, or consciousness alterations. They can also cause transient impairment of awareness, interfering with daily activities.
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...
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Seizures: Classification01:13

Seizures: Classification

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Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
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Antiepileptic Drugs: Sodium Channel Blockers01:08

Antiepileptic Drugs: Sodium Channel Blockers

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Antiepileptic drugs are specialized medications that prevent seizures in individuals diagnosed with epilepsy. These drugs primarily function by blocking the movement of sodium ions through channels in the neuronal membrane, inhibiting the repetitive firing of action potentials often associated with seizures.
Sodium channel blockers modulate ion channels, particularly voltage-gated sodium channels. They block only sodium ion movement.
Among the most commonly prescribed antiepileptic drugs are...
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Antiepileptic Drugs: Calcium Channel Blockers01:17

Antiepileptic Drugs: Calcium Channel Blockers

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Calcium channel blockers, a class of antiepileptic drugs, regulate the flow of calcium ions within neurons.
Calcium channel blockers exert their antiepileptic effects by targeting T-type calcium channels, which are integral to transmitting nerve signals in the central nervous system. These channels allow the passage of calcium ions, which are vital for neuronal communication. By inhibiting T-type calcium channels, calcium channel blockers effectively reduce the release of neurotransmitters and...
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Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein01:20

Antiepileptic Drugs: Modulators of Neurotransmitter Release Mediated by SV2A Protein

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Antiepileptic drugs, such as levetiracetam (Keppra) and brivaracetam (Briviact), have emerged as crucial tools in managing epilepsy. These medications exert their therapeutic effects by targeting the synaptic vesicle protein SV2A, a transmembrane glycoprotein primarily found in the brain.
SV2A is a transmembrane glycoprotein located predominantly in the brain, modulating the release of neurotransmitters for neuronal communication. Both levetiracetam and brivaracetam exhibit a high affinity for...
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Antiepileptic Drugs: Glutamate Antagonists01:14

Antiepileptic Drugs: Glutamate Antagonists

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Glutamate is a fundamental neurotransmitter in the central nervous system, playing a vital role in neuronal communication and various cognitive processes. Glutamate stands as the principal excitatory neurotransmitter in the brain. Its presence is crucial for the communication between neurons, underpinning essential processes such as synaptic transmission, neuronal excitability, and plasticity. These functions are vital for higher-order cognitive processes, including learning and memory. The...
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Related Experiment Video

Updated: Jan 14, 2026

Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization
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Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization

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Epilepsy in children.

Renzo Guerrini1

  • 1Department of Child Neurology and Psychiatry, University of Pisa and IRCCS Fondazione Stella Maris, 56018 Calambrone, Pisa, Italy. renzo.guerrini@inpe.unipi.it

Lancet (London, England)
|February 14, 2006
PubMed
Summary
This summary is machine-generated.

Childhood epilepsy affects 10.5 million children globally. Advances in diagnosis and understanding of epilepsy syndromes have improved management, though new drugs offer limited benefits.

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Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy
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Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy
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Area of Science:

  • Pediatric Neurology
  • Epileptology

Background:

  • Epilepsy affects 10.5 million children worldwide, presenting diverse clinical and etiological profiles.
  • Significant advancements in syndrome-oriented diagnosis, EEG, and neuroimaging have enhanced understanding and management of childhood epilepsy over 15 years.

Purpose of the Study:

  • To review the current understanding of childhood epilepsy, including its diversity, causes, and management strategies.
  • To highlight the challenges in understanding age-related expression and mechanisms of epileptic encephalopathies.

Main Methods:

  • Review of clinical and etiological diagnostic approaches, including EEG and neuroimaging.
  • Analysis of recent therapeutic advancements and surgical options for pediatric epilepsy.

Main Results:

  • Perinatal/postinfective encephalopathy, cortical dysplasia, and hippocampal sclerosis are key causes of severe symptomatic epilepsies.
  • Ion channel defects contribute to both benign and severe epileptic encephalopathies, with underlying mechanisms for age-related expression remaining unclear.
  • New antiepileptic drugs offer limited benefits, but improved drug selection and avoidance of polytherapy have enhanced quality of life.

Conclusions:

  • While diagnostic tools have improved childhood epilepsy management, understanding of underlying mechanisms, particularly for epileptic encephalopathies, requires further research.
  • Optimized drug selection and judicious use of epilepsy surgery are crucial for improving patient outcomes.
  • Further investigation into the age-related expression of epilepsy and the origins of epileptic encephalopathies is warranted.